Lincoln and Louisa return to the magical forest to find Solfern growing weaker-and the river behaving in ways that defy all logic. The water twists in strange currents, changes speed without warning, and carries pockets of swirling gray dust that shift the river's path. To continue their quest, the siblings must rely on careful scientific observation and what they know about how water moves.Determined to help their friend, Lincoln and Louisa build a simple model to test ideas about flow, force, and motion. But the river has dangers of its own. As the currents pull at their feet and the forest trembles with fading magic, the children must use courage, teamwork, and scientific thinking to find a safe way across.The Strange River is an exciting, STEM-rich chapter in The Prism Stone Adventures, perfect for readers ages 5-8 who love magic, mystery, and hands-on problem-solving. This book celebrates curiosity, bravery, and the power of understanding the natural world.